On my Nexus 7 (with Android 4.3), my Visualizer code will work fine: onFftDataCapture() returns an array full of data. Also, onWaveFormDataCapture() returns a byte array full of data.
HOWEVER - on my Galaxy S4 (with Android 4.3) my Visualizer code does not work fine: onFftDataCapture() returns a byte array full of 0's. Also, onWaveFormDataCapture() returns a byte array full of -128's
Is this a confirmed known issue? Is there a work-around ?
The closest snip of information that I've been able to uncover is... but nothing is confirmed by Samsung http://developer.samsung.com/forum/board/thread/view.do?boardName=GeneralB&messageId=238327&frm=7&tagValue=S4&curPage=1
After hours of searching I've discovered that, yes, the Samsung Galaxy S4 and other devices are F'd up.
Source: https://github.com/felixpalmer/android-visualizer/issues/5#issuecomment-25900391
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